Matucana ritteri
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Matucana ritteri is a species of plant in the genus Matucana from the cactus family(Cactaceae). The specific epithet ritteri honors the German cactus specialist Friedrich Ritter .
description
Matucana ritteri usually grows individually with flattened, spherical, glossy dark green shoots and reaches heights of 3 to 5 centimeters with a diameter of 5 to 10 centimeters. There are twelve to 22 blunt ribs . The straight to slightly curved brownish black thorns turn gray with age. The one to five central spines are 2 to 4 centimeters long, the seven to 14 radial spines 1 to 3 centimeters long.
The crooked, carmine-red flowers are 7 to 9 centimeters long and 4.5 to 5 centimeters in diameter. The bright red and green, scaly fruits reach a diameter of 1 to 1.5 centimeters.
Distribution, systematics and endangerment
Matucana ritteri is widespread in La Libertad near Otuzco in Peru at altitudes of 2500 meters.
It was first described in 1959 by Albert Frederik Hendrik Buining . Synonyms are Submatucana ritteri (Buining) Backeb. (1962) and Borzicactus ritteri (Buining) Donald (1971).
In the Red List of Threatened Species of IUCN is the species as " Critically Endangered (CR) ", d. H. listed as critically endangered.
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . With a foreword by Wilhelm Barthlott and an article by Roger Brown on cactus cultivation and care. Translated from English, supplemented and revised by Urs Eggli. Ulmer , Stuttgart 2005, ISBN 3-8001-4573-1 , p. 421 (English: The cactus family . Portland 2004. Translated by Urs Eggli ).
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 204.
- ^ Succulenta . Volume 38, Number 1, 1959, pp. 2-4.
- ↑ Matucana ritteri in the IUCN Red List of Threatened Species 2013.2. Posted by: Ostalaza, C., 2013. Retrieved April 19, 2014.
